Rolling-mill for car-wheels



(No Model.) 2 Sheets-Sheet 1.

B. F. RITTENH'OUSE.

ROLLING MILLPOR GAR WHEELS. l

Patented Oct. 8, 1889.

www ESSES:

(No Model.) u 2 sheets-'sheet 2.

B. F. RITTENHOUS-E.

ROLLING MILL P011 GAR WHEELS..

y110.1128115. Patented 001. 8, 1888.

1mm Ess'Es;

N. PETERS, Phoin-Lilllugrlphen'Washington D4 UNITED STATES PATENT OFFICE.

. BENJAMIN F. RITTENHOUSE, OF NORRISTOIVN, PENNSYLVANIA.

ROLLING-MILL. FOR CAR-WH EELS.

' SPECIFICATION forming part of Letters Patent No. 412,415, dated October 8, 1889.

i Application filed March 8, 1889. Serial No. 302,401. (No model.)

\ To a/ZZ whom; it may concern.:

' part thereof.

In carrying out my invention I provide a suitable support adapted to sustain a carwheel casting from its center and hold it in stationary position, and combine therewith a rotary frame in which are journaled peculiarly-shaped rolls adapted to press upon opposite faces of the car-wheel, said frames and rolls being rotated by means of suitable gearing or other power mechanism. There may be one or more rolls above and one or more rolls below the car=wheel, and the frames supporting said rolls are movable relatively to each other, so as to bring the rolls upon the opposite sides of the car-Wheel closer together or move them farther apart. In addition to the rolls for rolling the faces of the car-wheel, there are one or more horizontal rolls, which are adapted to roll the flanges of the carwh'eeh and these rolls are movable to and from the flange of the car-wheel andare adj usted by the relative movement between the two frames before mentioned. Provision is also made for separating the various rolls and lifting of the car-wheel automatically off its support into position to be removed. These are the essential features of the machine; but it is evident that in carrying them out the details may be modilied in various ways.

I will now more particularly describe. the

linvention, referring to the accompanying drawings, in which- Figure l is a side elevation of a rollinghmill embodying my invention. Fig. 2 is an end elevation. of same. Fig. 3 is a crosssectional plan view on line fr: w of Fig. 2, and Fig. 4 is a sectional elevation on line y y.

A is the housing or main frame of the machine. p

B- is a pedestal or base, which is stationary and arranged at the lower part of the housing. It is provided with an upwardly-extending stationary support C, having a square or rectangular shoulder part c, upon Which'the car-wheel R to be rolled is supported. By making the hole in the hub of the car-wheel square or otherwise irregular the wheel is retained against rotation upon its support. Journaled concentrically with this support and below the same is a rotary frame D,Which receives motion from a power-shaft W' and bevel-gears E.

w is a vclutch to stop or start the machine.

The frame I) is provided with one or more oblique bearings d, in which are journaled the loose rolls E, having oblique axles e, arranged within the bearings d. The rolling 4portions of these rolls E are curved to correspond to the' under face of the car-wheel and t up close to the central stationary support C.

Arranged above the frameD and car-wheel and concentric therewith is a second rotary frame F, journaled in a movable cross-head H at F', which rotary frame is also provided with oblique bearings f, directed downward toward the center of the car-wheel. In these bearings are journaled the axles g of the upper rolls G, which are made to conform to the upper surface of the car-wheel. The upper rolls, owing to the peculiar shape of the car-wheel surface, are larger in diameter than the lower rolls and have preferably a greater Obliquity to their axles, and this is permitted because thesupport C is arranged below the car-wheel. This upper frame has ears T, which project down upon each side of the lower frame D, and by this means the upper frame F and its rolls receive rotation with the lower frame D and its rolls, and so that the roll in the two frames,which are arranged one above the other, always remain in that relative position. These rolls are loosely journaled and rotate by the friction created between them and the carwheel. The crosshead I-I, with the upper rolls and their frames, may be forced down by means of a hydraulic press J I, receiving liquid through the pipe K, provided with a controlling-valve k. The cross-head H, frame F, and rolls G Gr may be raised after completing the rolling of the wheel by rods L and hydraulic engines M M, which have pipes N connecting with a threeway valve n for receiving a supply of liquid IOO from pipe O and discharging into a pipe I. It is quite evident that various forms of power devices may be employed for moving this cross-head H.

hare guides in the housing, in which the cross-head works.

S are horizontal rolls adapted t0 roll the periphery or treading parts of the car-wheel R, and are journaled in sliding blocks s, Fig. 4, which are provided with pins s projecting laterally from each side. These blocks or slides s are carried by the lower frame D, and the pins s' project into cam-slotst on the ears T, the said cam-slots being so shaped that a downward movement of the frame F will force the rolls S against the periphery of the carwheel, and an upward movement of said frame will cause the rolls S to move away fromsaid car-wheels. The lower parts of the ears T are provided with projections U, which normally are under the car-wheel and at some slight distance below it, the function of which is to lift the car-wheel off the central support c after the completion of the rolling, and also to deliver a new casting or blank into position to be rolled. y

The operation will now be understood. A car-wheel being in the position shown, the rolls G G and E E and SS are carried around the stationary car-wheel by the frames D and F, and as the pressure is exerted by hydraulic press J I all of the rolls have a tendency to approach upon the carwheel and reduce its thickness while rotating around it. After the car-wheel is fully rolled the crosshead, with its frame F and connections, is lifted. This causes the rolls GG to move upward away from the car-wheel and the rolls S S to be moved laterally away from the tread of the car-wheel, and the frame F in its upward movement causes the projections U thereof to lift the car-wheel clear of the support c and leave it in position to be withdrawn from between the rolls.

lt is evident that while the details shown are well adapted to the purpose they maybe modified without departing from the spirit of the invention.

Having now described myinvention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a rolling-mill for rolling car-wheels, a support for the car-wheel, whereby the wheel is held stationary, in combination with rolls arranged above and below the car-wheel, and power mechanism to cause said rolls to revolve around the center of the car-wheel.

2. In a rolling-mill for rolling car-wheels, a station ary support for the car-wheel, whereby the wheel is held stationary, in combination with rolls arranged above and below the carwheel and between the hub of the wheel and periphery, rolls arranged about the periphery of the car-wheel and between the plane of the upper and lower rollsY for rolling the tire or tread portion of the wheel, and power mechanism to cause said rolls to revolve around the center of the car-wheel.

3. In a rolling-mill for rolling carwheels,a

, support for the car-wheel, whereby the wheel is held stationary, in combination with rolls arranged above and below the car-wheel, power devices to move said rolls toward or from each other, and power mechanism t0 cause said rolls to revolve around the center of the carewheel.

4. In a rolling-mill for rollingr car-wheels, the combination of a central stationary support for the car-wheel, whereby the wheel is held stationary, with two rotary frames and one or more rolls carried in each frame and caused thereby to revolve around the central support and each made to conform in shape to the corresponding surfaces of the car-wheel to be rolled.

5. In a rolling-mill for rolling car-wheels,

' the combination of a central stationary support for the ear-wheel, whereby the wheel is held stationary, with two rotary frames, one or more rolls Acarried in each frame and caused thereby to revolve around the central support and each made to conform in shape to the corresponding surfaces of the car-wheel to be rolled, a connection between the two frames, and power devices to move said frames to or from each other.

6. In a rolling-mill for rolling car-wheels, the combination of a central stationary support for the car-wheel, whereby the wheel is held stationary, with two rotary frames, one or more rolls carried in each frame and caused thereby to revolve around the central support and each made to conform in shape to the corresponding surfaces of the car-wheel to be rolled, a connection between the two frames, power devices to move said frames to or from each other, and one or more rolls carried by said frames and arranged to roll the periphery of the car-wheel.

7. In a rollin g-mill for rolling car-wheels, the combination of a central stationary support for the car-wheel, whereby the wheel is held stationary,with two rotary frames, one or more rolls carried in each frame and caused thereby to revolve around the central support and each made to conform in shape to the corresponding surfaces of the car wheel to be rolled, a connection between the two frames, power devices to move said frames to 0r from each other, one or more rolls carried by said frames and arranged to roll the periphery of the carwheel,a slide supporting each said last-mentioned rolls on one of the frames, and cam mechanism carried by the other frame to operate the slide to move the said lastmentioned rolls to or from the periphery of the car-wheel.

8. In a rollingmiill for rolling car-wheels, the combination of a central stationary support for the car-wheel, whereby the Wheel is held stationary, with two rotary frames, one or more rolls carried in each frame and caused IOO IIO

ery of the car-wheel, a slide supporting each said last-mentioned rolls on one'of the frames, cam mechanism carried by the other frame to operate the slide to move the said last-mentioned rolls to or fromv the periphery of the car-wheel, and wheel-lifting devices operated by the last-mentioned frame to lift the' wheel off its support simultaneously with the separations of the rolls. p

9. In a rolling-mill for rolling car-wheels, the combination of a central stationary support for the car-wheels, whereby the wheel is held stationary, with Vtworotary frames, one or more rolls carried in each frame and caused thereby to revolve around the central sup-v port and each made to conform in shape to the corresponding surfaces ofthe car-wheel to be rolled, power mechanism to reciprocate one of said frames and its rolls with respect to the other frame and its rolls, and wheellifting devices moved with said reciprocating frame` to lift the wheeloff its central support when the rolls are separated.

10. The combination of a stationary support for a car-wheel casting or blank, whereby the wheel is held stationary, with a rotating frame, and one or more rolls carried thereby and made to conform to the curvature of the car-wheel face to be rolled and caused to revolve around the stationary support and carwheel. Y

l1. The 'combination of a stationary support for a car-wheel eastin g or blank, whereby the wheel is held stationary, with a rotating frame, and one or more loose or idler rolls having oblique axes and carried thereby and made to conform to the curvature of the carwheel face to be rolled and caused to revolve around the stationary support and car-wheel.

l2. The combination of a central support for a car-wheel casting or blank, whereby the wheel is held stationary, a rotary frame above and another below said support and car-wheel, supported thereby and concentric with respect therewith, and rollshaving rolling ends made to conform to the faces of the car-wheel and journaled on axles arranged obliquely in the plane of rotation of the frames, whereby said rolls are caused to revolve about the axis of the wheel and also about their own 'ob` liqu-e axis.

13. The combination of a central support fora car-wheel casting or blank, whereby the wheel is held stationary, a rotary frame above and another below said support and car-wheel, supported thereby and concentric with respect therewith, and rolls having rolling ends made to conform to the faces of the ear-wheel and journaled onaxles arranged obliquely in the plane of rotation of the frames, whereby said rolls are caused to revolve about the axis of the wheel and also about their own oblique axis and inwhich the Obliquity of the axles of the rolls of one frame is greater than that of the axlesof the rolls of the other frame.

lit. The combination of a central support for a car-wheel casting or blank, whereby the wheel is held stationary, a rotary frame above and another below said support and carwheel, supportedthereby and concentric with.

respect therewith, rolls having rolling ends made to conform to the faces of the ear-wheel and journaled on axles arranged obliquely in the frames, whereby said rolls are caused to revolve about the axis ofthe wheel and also about their own oblique axis, and power mechanism to force said frames and their rolls toward each other.

l5. The combination of a central stationary carwheel support, whereby the wheel is held stationary, a rotary frame adapted to travel around said support, and one or more rolls carried thereby for rolling the periphery or tread of the car-wheel, whereby said rolls are caused to revolve about said car-wheel. v

16. The combination of a central stationary car-wheel support, whereby the wheel is held stationary, a rotary frame adapted to travel around said support, one or more rolls carried thereby for rolling the periphery or tread of the car-wheel, whereby said rolls are caused to revolve about said car-wheel, and power devices'to move said rolls toward or from the carwheel. Y ln testimony of which invention l hereunto set my hand.

B. F. RITTENHOSE.

IOO 

